Spence, William P. Drafting : technology and practice / William P. Spence - 3rd ed. - New York, N.Y. : Glencoe/Macmillan/McGraw-Hill, c1991 - 799 p. : ill. Includes index ISBN: 0026762900 Subjects--Topical Terms: MECHANICAL DRAWING LC Class. No.: T353 / S636D 1991